The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2004
Filed:
Mar. 29, 2002
Applicant:
Inventors:
Kazuhiko Itakura, Kawasaki, JP;
Hiroshi Shimamori, Kawasaki, JP;
Kazutoshi Fuchigami, Kawasaki, JP;
Tsunehiro Ohno, Kawasaki, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/44 ; H02M 3/335 ;
U.S. Cl.
CPC ...
H02M 7/44 ; H02M 3/335 ;
Abstract
This electric-power supplying device comprises switching elements, rectifying elements, and a control circuit. The switching elements are switched according to a switching pulse so as to perform a rectification. The rectifying elements are connected in parallel with the switching elements so as to perform a rectification. The control circuit alters the switching pulse gradually upon switching between the rectification performed by the switching elements and the rectification performed by the rectifying elements.